14 Colorado
In 2024, we had complete survey coverage across the state of Colorado (Figure 14.1).
14.1 Colorado Statewide: Total
Colorado Statewide: Total
We obtained results for Colorado Statewide: Total by compiling and jointly analyzing data from 41 strata.
Field technicians completed 296 of 301 planned surveys (98%) in 2024. Technicians conducted 3073 point counts within the 296 surveyed grid cells between May 15 and July 18. They detected 199 bird species, including 39 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 244 species that were detected in any year during which surveys were conducted, 45 of which are priority species. The data yielded robust density estimates (CV < 50%) for 110 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado Statewide: Total for 243 species that were detected in any year during which surveys were conducted, 46 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 121 species.
14.2 All Other Lands in Colorado
All Other Lands in Colorado
We obtained results for All Other Lands in Colorado by compiling and jointly analyzing data from seven strata.
Field technicians completed 72 of 73 planned surveys (99%) in 2024. Technicians conducted 759 point counts within the 72 surveyed grid cells between May 18 and July 16. They detected 142 bird species, including 26 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 210 species that were detected in any year during which surveys were conducted, 44 of which are priority species. The data yielded robust density estimates (CV < 50%) for 68 species.
Bird Conservancy estimated the proportion of occupied plots throughout All Other Lands in Colorado for 210 species that were detected in any year during which surveys were conducted, 44 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 66 species.
14.3 Colorado BCR 10
Colorado BCR 10: Total
We obtained results for Colorado BCR 10: Total by compiling and jointly analyzing data from four strata.
Field technicians completed all planned surveys (100%) in 2024. Technicians conducted 209 point counts within the 19 surveyed grid cells between May 21 and June 27. They detected 87 bird species, including 13 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 126 species that were detected in any year during which surveys were conducted, 23 of which are priority species. The data yielded robust density estimates (CV < 50%) for 15 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado BCR 10: Total for 126 species that were detected in any year during which surveys were conducted, 23 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 22 species.
All Other Lands in Colorado BCR 10
We obtained results for All Other Lands in Colorado BCR 10 by compiling and analyzing data from one stratum.
Field technicians completed all planned surveys (100%) in 2024. Technicians conducted 60 point counts within the 5 surveyed grid cells between May 21 and June 24. They detected 60 bird species, including 6 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 114 species that were detected in any year during which surveys were conducted, 22 of which are priority species. The data yielded robust density estimates (CV < 50%) for 7 species.
Bird Conservancy estimated the proportion of occupied plots throughout All Other Lands in Colorado BCR 10 for 114 species that were detected in any year during which surveys were conducted, 22 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 10 species.
14.4 Colorado BCR 16
Colorado BCR 16: Total
We obtained results for Colorado BCR 16: Total by compiling and jointly analyzing data from 27 strata.
Field technicians completed 207 of 211 planned surveys (98%) in 2024. Technicians conducted 2084 point counts within the 207 surveyed grid cells between May 15 and July 18. They detected 149 bird species, including 26 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 197 species that were detected in any year during which surveys were conducted, 35 of which are priority species. The data yielded robust density estimates (CV < 50%) for 91 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado BCR 16: Total for 194 species that were detected in any year during which surveys were conducted, 35 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 97 species.
All Other Lands in Colorado BCR 16
We obtained results for All Other Lands in Colorado BCR 16 by compiling and analyzing data from one stratum.
Field technicians completed all planned surveys (100%) in 2024. Technicians conducted 173 point counts within the 20 surveyed grid cells between May 23 and July 16. They detected 103 bird species, including 10 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 180 species that were detected in any year during which surveys were conducted, 33 of which are priority species. The data yielded robust density estimates (CV < 50%) for 30 species.
Bird Conservancy estimated the proportion of occupied plots throughout All Other Lands in Colorado BCR 16 for 181 species that were detected in any year during which surveys were conducted, 33 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 34 species.
14.5 Colorado BCR 18
Colorado BCR 18: Total
We obtained results for Colorado BCR 18: Total by compiling and jointly analyzing data from ten strata.
Field technicians completed 70 of 71 planned surveys (99%) in 2024. Technicians conducted 780 point counts within the 70 surveyed grid cells between May 18 and June 14. They detected 129 bird species, including 19 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 205 species that were detected in any year during which surveys were conducted, 35 of which are priority species. The data yielded robust density estimates (CV < 50%) for 35 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado BCR 18: Total for 205 species that were detected in any year during which surveys were conducted, 35 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 42 species.
Colorado BCR 18 Rivers
We obtained results for Colorado BCR 18 Rivers by compiling and jointly analyzing data from two strata.
Field technicians completed all planned surveys (100%) in 2024. Technicians conducted 70 point counts within the 8 surveyed grid cells between May 21 and June 5. They detected 79 bird species, including 4 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 178 species that were detected in any year during which surveys were conducted, 25 of which are priority species. The data yielded robust density estimates (CV < 50%) for 16 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado BCR 18 Rivers for 178 species that were detected in any year during which surveys were conducted, 25 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 18 species.
Colorado BCR 18: Total
We obtained results for Colorado BCR 18: Total by compiling and jointly analyzing data from five strata.
Field technicians completed 47 of 48 planned surveys (98%) in 2024. Technicians conducted 526 point counts within the 47 surveyed grid cells between May 18 and June 14. They detected 75 bird species, including 15 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 133 species that were detected in any year during which surveys were conducted, 22 of which are priority species. The data yielded robust density estimates (CV < 50%) for 26 species.
Bird Conservancy estimated the proportion of occupied plots throughout Colorado BCR 18: Total for 133 species that were detected in any year during which surveys were conducted, 22 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 32 species.
Non-river Lands in Colorado BCR 18
We obtained results for Non-river Lands in Colorado BCR 18 by compiling and jointly analyzing data from eight strata.
Field technicians completed 62 of 63 planned surveys (98%) in 2024. Technicians conducted 710 point counts within the 62 surveyed grid cells between May 18 and June 14. They detected 104 bird species, including 18 priority species.
Bird Conservancy estimated densities (birds per square kilometer) for 175 species that were detected in any year during which surveys were conducted, 29 of which are priority species. The data yielded robust density estimates (CV < 50%) for 31 species.
Bird Conservancy estimated the proportion of occupied plots throughout Non-river Lands in Colorado BCR 18 for 175 species that were detected in any year during which surveys were conducted, 29 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 37 species.